baber/WOPTO huggingface dataset:
Patent GB-1479187-A (GB)
Title: Thickness control device for rolling mill
IPC: B21B37/66
Filed: 1974-08-20
Abstract: 1479187 Automatic control of rolling mills HITACHI Ltd 20 Aug 1974 [22 Aug 1973] 36614/74 Heading G3N In a rolling mill thickness control system, roll eccentricity is calculated using statistical techniques and used in an hydraulic roll gap control so as to remove the influence of roll eccentricity on the output thickness. In the embodiment, the input thickness h 1  is measured using an x-ray thickness gauge and the output thickness h2 calculated from h 1  and the rolling pressure at 8. Auto and cross correlation functions for h 1  and h2 are calculated and the respective power spectra for each function obtained by Fourier integration. From the spectra, the coherence γ<SP>2</SP> between h 1  and h2 is found and compared with a desired value, and if lower than this value a correction for eccentricity is made. From the coherence, the eccentricity is calculated, and its phase relative to the roll position determined from the rolling pressure at 8 and the backup roll position, and used to compensate for phase delay in the thickness control. The input and output signals h 1 , h 2 , the eccentricity phase signal and a desired thickness signal are used to control the mill roll gap i.e. the thickness of rolled material.
Patent GB-903743-A (GB)
Title: Cut length detector for use with railway cars
IPC: B61L17/00
Filed: 1958-11-14
Abstract: 903,743. Gauging length of moving vehicles. WESTINGHOUSE AIR BRAKE CO. Nov. 14, 1958 [Nov. 14, 1957], No. 36658/58. Class 106 (2). [Also in Group XXX] In a cut length detector for measuring the length of a cut of one or more railway vehicles and for use in the automatic system of classifying railway cars described in Specification 903,741, the length of the cut is registered in one of five classifications, each covering a particular range, viz. o-x ft., x-2x ft., 2x-3x ft., 3x-4x ft. and over 4xft. Track sections CL 1T and CL4T, Fig. 1b are each 2x ft. in length and sections CL2T and CL3T are x ft. in length. These track sections and sections GRIT, GR2T and WT are each insulated and provided with track relays CL1TR-CL4TR, R1TR, R2TR and WTR. With the exception of relay WTR, each track relay is provided with one or more repeater relays CL1TP-CL4TP, R1TP, R1TPP and R2TP which are energized when their associated track section is occupied. Four end of cut relays are provided, relay CLEC which is operated when a cut vacates section CL1T and is held until it vacates section CL3T, relay GAEC which operates when a cut vacates section CL4T and is held until section GRIT is vacated, relay R1EC which operates when section GRIT is vacated and is held until section GR2T is vacated and relay R2EC which is energized when section GR2T is vacated and released when section WT is vacated. Length registration relay CLA operates when relays CLEC and CL3TP are operated and relays CL4TP and R1TPP are released, thereby indieating a cut length of less than sections CL2T and CL3T or 0-2x ft. Relay CLB operates when relays CLEC and CL3TP are operated and relays B1TPP and CL2TP are released, thereby indicating a cut length of less than sections CL3T and CL4T or 0-3x ft. Relay CLC operates when relays CLEC, CL4TP and CL2TP, are operated and relay R1TPP is released, hence indicating a cut length of less than 4x ft. but since section CL3T must be spanned by the cut the length must be greater than x ft. Therefore with length registration relays CLA and CLB operated the length is between o-x ft. with relays CLA, CLB and CLC operated the length is x-2x ft., with relays CLB and CLC operated the length is 2x-3x ft. and with CLC operated the length is 3x-4x ft. If noen of the relays is operated the length must be greater than 4x ft. The cut length is employed as a factor in determining the rolling resistance of the cut and the information indicated by the condition of relays CLA-C is passed to two computers, Fig. la (not shown). Relay SC is a second cut relay and is operated when a second cut enters section CL1T whilst the first still occupies sections CL2T-CL4T or CL3T-CL4T, the relay acts to finalize the length registration of the first cut as soon as the following cut enters section CL1T.
Patent GB-787490-A (GB)
Title: A process for isomerizing dialkyl benzenes in the liquid phase
IPC: C07C5/27
Filed: 1955-12-22
Abstract: In the isomerization process of the parent Specification in which a dialkyl benzene or a mixture of isomeric dialkyl benzenes are passed in the liquid phase over a catalyst consisting of or comprising a powdery aluminium silicate obtained by spray drying, the catalyst is subjected before use to a surface-modifying treatment.  This may consist of a treatment with steam for 1-24 hours at atmospheric pressure at approximately 600 DEG  C. or with air or an inert gas for 1 to 12 hours at atmospheric pressure at 500-800 DEG  C. or with a 1 per cent aqueous HF solution at about room temperature. Specification 504,614, [Group III], also is referred to.
Patent GB-1535012-A (GB)
Title: Coding and decoding of information characters
IPC: H03M5/14
Filed: 1977-09-05
Abstract: In CCITT code no. 2, letters and numbers are differentiated by means of a case-shift signal. In order to satisfy the need for an increase in the character set, an additional case-shift signal is implemented by means of the key (3). If the hitherto normal case-shift signal characterises letter-shift signals in lower case, the additional case-shift signal characterises the first following letter-shift signal and only this as a letter-shift signal in upper case. <IMAGE>
Patent GB-841480-A (GB)
Title: Improvements relating to reinforced laminated articles
Inventor: HENSON DOUGLAS RONALD
IPC: B32B27/00
Filed: 1955-12-23
Abstract: A polyvinyl chloride adhesive comprises (parts by weight): .Polyvinyl chloride.100, .Tricresyl phosphate.100, .Dialpharyl phthalate.50, .Lead silicate.3, .Lead phosphite.3, .Carbon black.10, .Triphenylmethane triisocyanate,.1000 .20% solution in methylene chloride.1000 Dialpharyl phthalate is the mixed ester of phthalic acid and an octyl alcohol containing small quantities of heptyl and nonyl alcohols.  The adhesive may be prepared by mixing all the ingredients except the triisocyanate solution, heating to 100 DEG C, and finally stirring the cooled mixture into the triisocyanate solution.  A rubber bonding solution comprises (parts by weight) Rubber 100,0, Zinc oxide 5,0, Stearic acid 2,0, Sulphur 2,5, Mercaptobenzthiazole 0,8, Channel black 50,0, Ethylene dichloride 1440,0, and Solution of 60 parts by weight of diphenylmethane diisocyanate in 40 parts by weight of xylene 533,0.  The rubber is first left to soak for 16 to 24 hours in half the ethylene dichloride and stirred to uniformity.  The other ingredients, except the isocyanate solution are mixed in to the solution which is then diluted with the remaining ethylene dichloride and finally added to the xylene solution of diisocyanate.  Both adhesives are used in laminating (see Group VIII) after removal of substantially all of the solvent under vacuum.
Patent GB-619633-A (GB)
Title: Improvements in or relating to methods and means for registering printing elements
IPC: B41F3/46
Filed: 1946-12-17
Abstract: 619,633. Printing-surfaces. HEINRICH, Inc., H. H. Dec. 17, 1946, No. 37135. Convention date, Oct. 29. [Class 100(ii)] [Also in Group XX] A flat bed colour printing element 3 mounted on an imposing table 1 is brought into registry with a fixed registry element 9 mounted on a transparent plate 8 mounted above the table 1 on uprights 4, 7, by means of a mirror arrangement comprising a transparent mirror 17 arranged horizontally in a housing 16, and an inclined non-transparent mirror 18 which reflects in a horizontal direction images of both elements 3, 9. The rays from the element 3 pass through the mirror 17 before reaching the mirror 18, and the rays from the element 9 are reflected from the mirror 17 to the mirror 18. The housing 16 is carried by a sleeve 19 having a groove and tongue connection with an adjustably mounted bar 13 formed with hooks 14, 15 slidable on rods 11, 12 secured to the supports 4, 7. The housing 16 can be adjusted vertically and angularly on a screw pin 21 carried by the sleeve 19 and fitted with a nut 22 arranged between hubs 23, 24 connected to the housing. A screw 28 secures the housing 16 in adjusted position. The angular adjustment of the housing permits reflection of the combined images in different directions. Electric lights 29, 30, and two others not shown, are used to illuminate the members 3, 9 without exposing the light directly to the observer.
Patent GB-826266-A (GB)
Title: Improvements in gas-blast electric circuit breakers
IPC: H01H33/56
Filed: 1956-12-05
Abstract: 826,266. Gas-blast switches. LICENTIA PATENT-VERWALTUNGS-G.m.b.H. Dec. 5, 1956 [Dec. 5, 1955], No. 37162/56. Class 38 (5). A gas-blast switch has its arc-extinguishing gas supplied from two tanks containing compressed gas, one tank being connected to the switch for the period of an opening and reclosing operation and the other tank being connected to the switch for the period of a final opening operation. The tanks may be filled to the same pressure and have independently controlled blast valves.
Patent GB-1402380-A (GB)
Title: Artificial protective environment for plants
IPC: A01G13/00
Filed: 1973-08-06
Abstract: 1402380 Protecting plants with polymer coatings MINNESOTA MINING & MFG CO 6 Aug 1973 [7 Aug 1972] 37280/73 Heading C1B A method for providing an artificial protective environment for a plant or portion (including seeds) thereof comprises contacting the plant or portion thereof with a fluid agent comprising hydrophilic urethane prepolymer of the formula in which Y<SP>1</SP> represents an active hydrogen-free residue of a compound having a plurality of active hydrogen atoms, (RO) 0  represents a hydrophilic polyoxyalkylene chain having a plurality of oxyethylene units, o is the number of oxyalkylene units in the chain, Y<SP>2</SP> represents an organic linkage bonding the polyoxyalkylene chain to the isocyanate moiety shown in the formula, p is an integer from 1 to 5, and z is an integer equal to, the number of hydrogen atoms in the compound from which Y<SP>1</SP> is derived, and curing the prepolymer in the presence of water to form a thin, discontinuous, water-insoluble, hydrophilic polyurethane - polyurea polymer coating which is adhesively bonded to said plant or portion thereof. The invention also comprises sprayable compositions for use in the method and comprising the hydrophilic urethane prepolymer, an agrichemical and a solvent. The agrichemical may be a herbicide, fungicide, root hormone or fertilizer or lime or sulphur. The invention finds application in transplanting seedlings and sowing seeds.
Patent GB-1011312-A (GB)
Title: Dihydrocarbontin dialkylbenzene ª‡,ª‡ dimercaptides
IPC: C08L27/00
Filed: 1963-09-23
Abstract: Dihydrocarbontin dialkylbenzene a ,a 1-dimercaptides of the formula <FORM:1011312/C3/1> e.g. <FORM:1011312/C3/2> defined later, are employed possibly together with other stabilizers as heat stabilizers for halogen-containing resin compositions, e.g. vinyl chloride polymers and copolymers of vinyl chloride with vinyl acetate, vinylidene chloride and acrylonitrile.  The treated resin may contain 0.5-10% based on the wt. of the resin of the stabilizer. R is an aralkyl, alkyl or phenyl radical, R1 and R11 are alkylene radicals containing 1-3 carbon atoms, and X is at least 1. R1 and R11 groups may be o, m or p to each other.  R may be methyl, ethyl, butyl, isobutyl, tert.-butyl, amyl, hexyl, heptyl, octyl, monyl or dodecyl. A mixture of polyvinyl chloride and di-n-butyltin p-xylene a ,a 1-dimercaptide is described. Other stabilizers may be dibutyltin dilaurate, dibutyltin maleate, dibutyltin bis-(lauryl mercaptide) and their dioctyl tin analogues.
Patent GB-1447057-A (GB)
Title: Composite structures for furniture shelving partition walls  or the like
IPC: E04C3/04
Filed: 1973-08-07
Abstract: 1447057 Structural joints for furniture &c. R VINCENS 7 Aug 1973 [8 Aug 1972 and 26 Jan 1973] 37382/73 Heading F2M [Also in Division E1-E2] In a building structure comprising at least one elongate support 50, Fig. 1, having a longitudinal channel 2 with an undercut rebate 3 and wherein the support receives a series of modular bridge or transverse members 150, Fig. 4, which are mounted longitudinally therein each member 150 comprises a rigid body 75 and at least two opposed side pillors 70 at least one of which is provided with at least one sharp edged lug 68 formed by a projection cut from that pillar, the connection between the members 50, 150 is such that the lugs of the pillars are concealed whilst other parts of the pillar frictionally engage the support 50. In a modification, the bridge member 152, Fig. 9, comprises a rectangular deck 76 having three rectangular basins 200 with slots 230 adapted to locate cross-bracing flanges (300-Fig. 10, not shown). The deck 76 is also provided with a locking catch 240, re-inforcing ribs 250, 251 and pillars 70 which in turn have flanks 81 profiled as shown and furnished with locking spurs 92 for fuller details of which Figs. 13, 15, 16 and 17 (not shown), should be referred to. Two units 152 may be interconnected by a member 360 having internal flanges 362, 363. For numerous modifications, materials employed, dimensions, application to the furniture art, joint details the Specification and remaining drawings, (not shown) should be referred to.
Patent GB-302911-A (GB)
Title: Arrangement for converting direct current into alternating current by means of electric vacuum valves
IPC: H02M7/51
Filed: 1928-12-18
Abstract: 302,911. Maschinenfabrik Oerlikon. Dec. 23, 1927, [Convention date]. Vacuum or low-pressure apparatus, arrangements of.-An arrangement for supplying high tension current to the ionization electrodes Z1, Z2 of a pair of vacuum valves V1, V2 associated with transformer windings for producing A.C. from a D.C. source, comprises a transformer T1, the primary P1 of which is energized from the D.C. source Q1 through a rotary interrupter U. Two secondary windings S1, S2 are provided and connected respectively to the ionization anodes Z1, Z2 through rotary distributers B1, B2 on the same shaft W as the interrupter U. The phase of the derived A.C. is adjusted by adjustment of the cam ring r. In a modified arrangement, insulation difficulties are overcome by arranging the two secondaries on separate transformer cores energized by separate primaries connected in series. The Specification as open to inspection under Sect. 91 (3) (a) refers to Specification 302,362. This reference does not appear in the Specification as accepted.
Patent GB-855694-A (GB)
Title: Catalysts for condensation reactions
IPC: C07C209/18
Filed: 1958-11-21
Abstract: A process for preparing aromatic diamines comprises reacting a primary amine with an aromatic compound in which the benzene ring is di-hydroxy substituted in the presence of a catalyst consisting of a mixture of (1) at least one of the iron compositions, metallic iron, iron oxides and iron hydroxides and (2) at least one amine hydrohalide of the formula R2NH3X wherein X is halogen and R2 is hydrogen, a primary or secondary alkyl radical of 1 to 20 carbon atoms, an aralkyl radical of 7 to 12 carbon atoms, a cycloalkyl radical of 5 to 8 carbon atoms or a phenyl radical which may be mono-or di-substituted by primary or secondary alkyl radicals of 1 to 20 carbon atoms, aralkyl radicals of 7 to 12 carbon atoms, cycloalkyl radicals of 5 to 8 carbon atoms or alkoxy radicals of 1 to 9 carbon atoms.  The primary amines which may be used in the condensation are those of the formula R,NH2 where R is defined in the same way as R2 above with the exception of R representing hydrogen and the dihydroxy compound is preferably hydroquinone or an alkylated hydroquinone. Mixtures of primary amines and dihydroxy compounds may be used.  The condensation may be carried out by heating under pressure using for example, 0,05 to 0,2 mols of amine hydrohalide and 0,01 to 0,05 mols of the iron composition per mol of the dihydroxy compound.  The two catalyst components may be added individually or mixed together and then added to the reactants.  A list of suitable amine hydrohalides is given.  An azeotroping agent, e.g. an aromatic hydrocarbon, may be added to the reactants so that the water formed in the reaction may be removed azeotropically.  Iron may be removed from the mixture after the condensation by adding a water soluble salt which forms an insoluble iron salt.  Examples describe the condensation of aniline with hydroquinone and illustrate the use of iron powder and ferric oxide and aniline hydrochloride and hydrobromide and ammonium chloride and bromide.
Patent GB-1473006-A (GB)
Title: Data transmission systems
IPC: H04L1/00
Filed: 1974-08-28
Abstract: 1473006 Data transmission systems; diversity reception systems SIEMENS AG 28 Aug 1974 [6 Dec 1973] 37528/74 Headings H4P and H4L In a data transmission system in which data is transmitted via diversity channels, m parity bits and n information bits in accordance with a code frame are received and input serially into a parity bit register PR, Fig. 2, and an information bit register JR and the inputs of a first parity stage PS1 are connected to the outputs of m1 cells of a first part PR1 of the parity bit register PR and to n1 cells of a first part JR1 of the information bit register JR for selecting a diversity channel D1, D2 or D3. Bits are input into the first parts of the registers via a channel switch KS and each diversity channel D1-D3 is connected via a respective code frame switch CS1, CS2, CS3 to the inputs of respective second parts PR2 and JR2 of the parity bit and information bit registers; m2 cells of the second part PR2 of the parity bit registers, n2 cells of the second part JR2 of the information bit register and the output of the first parity stage PS1 are connected to further parity stages PS11, PS12, PS13 provided in each diversity channel where m=m1+m2 and n=n1+n2. Also the outputs of the further parity stages PS11-PS13 are connected to a quality evaluation stage QB which produces signals A1-A3 to control the channel switch KS so as to switch through one of the diversity channels. In Fig. 1 the output from a data source DQ is fed via a coder CD and modulators MD1, MD2 and MD3 to a radio transmitter FS. The output from a radio receiver FE provides three channels K1, K2, K3 to demodulators DM1, DM2 and DM3, the outputs from which are fed via the code frame switches CS1-CS3 to a test device PE and via the channel switch KS and a code frame switch CS to a decoder DC. The decoder DC and test device PE include the information bit registers JR, parity bit registers PR and parity stages PS1, PS11-PS13 which operate the channel switch KS so as to switch through one of the diversity channels. A further parity stage PS2, Fig. 2, at DC controls a fault correction stage FK to correct data faults applied to a teleprinter DS. The quality evaluation stage includes gates (G10-G26, Fig. 4, not shown) a counter (Z), which counts the output signals S from the further parity stage PS2 within the test period, and a multiple decision gate (ME). In a modification (Fig. 5, not shown) each code frame switch CS, CS1-CS3 has four output contacts (b-e) and contacts (b-d) of which are connective to respective information bit registers JR and contacts (e) of which are connected to the parity bit registers PR. In a further embodiment (Figs. 6-8, not shown) the inputs to the decoder DC consisting of the information bits J and the parity bits P are switched from the outputs of the channel switch KS, the inputs of which are fed from the outputs of the code frame switches CS1-CS3. A space time or frequency diversity process may be used and the data can be coded in the form of a convolutional or block code.
Patent GB-1066649-A (GB)
Title: Improvements in or relating to frequency demodulating circuits
IPC: G06G7/24
Filed: 1964-09-15
Abstract: 1,066,649. Frequency demodulators. AMPEX CORPORATION. Sept. 15, 1964 [Nov. 22, 1963], No. 37629/64. Heading H3A. A frequency demodulator comprises a trigger signal generator 11 which develops an output signal pulse B each time the signal A being demodulated passes through zero; pulse generator means 60, triggered by pulses B which develops positive and negative short-duration pulses C; function generator means 100 including an R.C. circuit which charges during the period between pulses C and is discharged by the negative going portion of the positive pulses C; gated amplifier means 100 which sample the output signal D of the function generator during the occurrence of pulses C; storage means 208, including a capacitor which is charged or discharged to the amplitude of the sampled signal and low-pass filter means 223 to which the output E of the storage means is applied and which provides the demodulated signal F. The storage circuit is controlled by the pulses C such that if the existing stored voltage is greater than the sampled voltage then one of the pulses opens a discharge path for the capacitor and if the sampled value exceeds that stored the other pulse opens a charge circuit for the capacitor.
Patent GB-1524078-A (GB)
Title: Coating compositions suitable for protecting metal surfaces against corrosion
IPC: C09C1/28
Filed: 1975-09-12
Abstract: 1524078 Calcium silicofluoride J M ELTZROTH & ASSOCIATES Inc 12 Sept 1975 [12 Sept 1974] 37640/75 Heading C1A [Also in Division C3] CaSiF 6  used as a pigment in emulsion anticorrosion coating compositions is prepared by mixing equimolar proportions of an inorganic calcium compound and H 2 SiF 6  or a salt thereof in sufficient water to form a paste or thick slurry, neutralizing the resultant mixture, drying and grinding. Up to 10% by weight (calculated as Cr) of a Cr compound may be added to the product before the drying and grinding steps.
Patent GB-369213-A (GB)
Title: Improvements in and relating to photographically prepared stencils
IPC: G03F7/12
Filed: 1930-12-15
Abstract: 369,213. Photo-stencils. PASTOR, C. T., 15, Bismarckplatz, Krefeld, Germany. Dec. 15, 1930, No. 37741. [Class 98 (ii).] To reproduce half-tones, a chrome-gelatin image perforated in the half-tones of the picture is produced on a gauze stencil sheet of bolting cloth or wire gauze, either by including substances (such as finely divisible metals, metallic salts soluble in acids, metallic oxides, granulated resin or fine nitro-cellulose particles) which can be removed or acted on during or after development (as by dilute hydrochloric acid in the case of aluminium powder, lactic acid in the case of metal oxides, and acetone or amyl-acetate in the case of nitro-cellulose particles) ; or alternatively by introducing air or gas into the chrome-gelatin coating which will burst on development, in the middle tones of the image. An all-metal stencil can be produced by using a metal-gauze sheet, preliminarily filling the interstices with a different etchable metal and after producing a perforated image as above, etching through the filling material (as by acids or electrolytically), and removing the gelatin layer.